Fix: Updated externip config comment. Regenerated sccp.conf.annotated sample file.

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5619 43c1dc8c-776e-4df2-8ef1-6e829299be21
Fix: debug message about hangup_cause being set

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5620 43c1dc8c-776e-4df2-8ef1-6e829299be21